United Microelectronics (UMC)
United Microelectronics (UMC) is a major in the Foundry segment of the semiconductor & AI supply chain, headquartered in Taiwan. Its key suppliers include Shin-Etsu Chemical, SUMCO, GlobalWafers. Its key customers include Qualcomm, MediaTek, Realtek Semiconductor.
Taiwan's second foundry, strong in mature and specialty nodes.
- Ticker
- NYSE: UMC
- Headquarters
- Taiwan
- Revenue
- $7.1B (FY2024) · -2.5% YoY
- Net income
- $1.5B
- Operating margin
- 22.2%
- Market position
- major
- Value-chain segment
- Pure-Play Foundry
- Key products
- 28nm/22nm processes
About United Microelectronics (UMC)
United Microelectronics (UMC), headquartered in Taiwan, operates in the Pure-Play Foundry segment of the semiconductor & AI supply chain and is positioned as a market major there. Its key products include 28nm/22nm processes. wafergraph maps 24 tracked suppliers and 15 tracked customers for United Microelectronics (UMC) across the value chain. It has a supply-chain criticality score of 69/100, with 241 companies downstream of it.
Role in the chain
United Microelectronics (UMC) is a market major in Foundry (Pure-Play Foundry), headquartered in Taiwan. Taiwan's second foundry, strong in mature and specialty nodes.
Diligence questions
- The dataset records 24 tracked suppliers for United Microelectronics (UMC). Which of those edges are researched (named in a filing or primary source) versus segment-inferred, and what happens if one of them stops shipping?
- 16 of United Microelectronics (UMC)'s tracked suppliers are a monopoly or leader (including ASML, Adeia Inc., Air Liquide, Applied Materials). Which of those are actually single-source for the process step you care about?
- The dataset names 15 tracked customers for United Microelectronics (UMC). How concentrated is demand among those names, and which of them have a documented second source in this graph?
- United Microelectronics (UMC) is headquartered in Taiwan. What jurisdiction, export-control or logistics risk sits at that HQ, versus at the fabs or plants the filings actually name?
- United Microelectronics (UMC) trades as NYSE:UMC. What does the latest reported period say about capacity and backlog versus the graph position above?
- Before treating any edge as a verified relationship, check the provenance labels on the company page and the method note at /methodology.
Key products
- 28nm/22nm processes
Suppliers
- Shin-Etsu Chemical · relationship
- SUMCO · relationship
- GlobalWafers · relationship
- Siltronic · relationship
- Soitec · relationship
- JSR · relationship
- Tokyo Ohka Kogyo · relationship
- Air Liquide · relationship
- Linde · relationship
- Air Products · relationship
- Photronics · relationship
- ASML · relationship
- Canon · relationship
- Applied Materials · relationship
- Lam Research · relationship
- Tokyo Electron · relationship
- KLA · relationship
- ASM International · relationship
- SCREEN Holdings · relationship
- Wafer Works · relationship
- Solar Applied Materials · relationship
- MPI Corporation · relationship
- Ningbo Jiangfeng Electronic Material (Konfoong) · relationship
- Adeia Inc. · relationship
Customers
- Qualcomm · relationship
- MediaTek · relationship
- Realtek Semiconductor · relationship
- Novatek Microelectronics · relationship
- Intel · relationship
- Texas Instruments · relationship
- NXP Semiconductors · relationship
- Allegro MicroSystems · relationship
- NVIDIA · relationship
- AMD · relationship
- Broadcom · relationship
- Apple · relationship
- Faraday Technology · relationship
- Phison Electronics · relationship
- Integrated Silicon Solution · relationship
More Foundry companies
Compare with
TSMC · SMIC · Tower Semiconductor · GlobalFoundries · Hua Hong Semiconductor · Nexchip Semiconductor
Sources
Open the interactive supply-chain view →
Cite as: wafergraph, “United Microelectronics (UMC) — supply chain, financials & market position”, https://wafergraph.com/company/umc (data as of 2026-09-05).
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